No.	Field Name	Description
1	school_id	The unique identification number of student
2	school_type	The type of school, typically including regular junior secondary school, combined secondary school, nine-year school, and secondary school for minority
3	dist_to_downtown	The distance from school to the region’s downtown
4	rate_higher_education	The proportion of the teachers with a bachelor degree or above
5	rate_master_degree_or_above	The proportion of the teachers with a master degree or above

No.	Field Name	Description
1	student_id	The unique identification number of student
2	subject_abbr	The abbreviation of subject
3	exam_id	The unique identification number of test
4	question_id	The unique identification number of question
5	concept	The concept(s) associated with the question
6	score	The student’s score on the question
7	full_score	The full score of the question
8	time_access	The system access time of the student

No.	Field Name	Description
1	student_id	The unique identification number of student
2	age_father	The age of student’s father
3	age_mother	The age of student’s mother
4	edubg _father	Father’s education background
5	edubg _mother	Mother’s education background
6	affiliation_father	The employer’s type typically including public sector, state-owned enterprise, collective enterprise, private enterprise, foreign-funded enterprise, etc.
7	affiliation_mother	The employer’s type typically including public sector, state-owned enterprise, collective enterprise, private enterprise, foreign-funded enterprise, etc.
8	family_income	The annual income of the student’s family
9	is_only_child	Whether the student is the only child of the family
10	live_on_campus	Whether the student lives on campus or not
11	gathering_frequency_father	How often the student gathering with his/her father
12	gathering_frequency_mother	How often the student gathering with his/her mother
13	family_traveling_times	How many times the student went traveling with the family last year

No.	Field Name	Description
1	student_id	The unique identification number of student
2	psy_score	The student’s cognitive intelligence score